/*
* GetConfigPtr is a public C-level function for getting OpenSSL CONF struct
* from an OpenSSL::Config(eConfig) instance. We decided to implement
* OpenSSL::Config in Ruby level but we need to pass native CONF struct for
* some OpenSSL features such as X509V3_EXT_*.
*/
CONF *
GetConfigPtr(VALUE obj)
{
CONF *conf;
VALUE str;
BIO *bio;
long eline = -1;
OSSL_Check_Kind(obj, cConfig);
str = rb_funcall(obj, rb_intern("to_s"), 0);
bio = ossl_obj2bio(str);
conf = NCONF_new(NULL);
if(!conf) {
BIO_free(bio);
ossl_raise(eConfigError, NULL);
}
if(!NCONF_load_bio(conf, bio, &eline)) {
BIO_free(bio);
NCONF_free(conf);
if (eline <= 0) ossl_raise(eConfigError, "wrong config format");
else ossl_raise(eConfigError, "error in line %d", eline);
ossl_raise(eConfigError, NULL);
}
BIO_free(bio);
return conf;
}
LHASH *CONF_load_bio(LHASH *conf, BIO *bp,long *eline)
{
CONF ctmp;
int ret;
CONF_set_nconf(&ctmp, conf);
ret = NCONF_load_bio(&ctmp, bp, eline);
if (ret)
return ctmp.data;
return NULL;
}
int FuzzerTestOneInput(const uint8_t *buf, size_t len) {
CONF *conf = NCONF_new(NULL);
BIO *in = BIO_new(BIO_s_mem());
long eline;
OPENSSL_assert((size_t)BIO_write(in, buf, len) == len);
NCONF_load_bio(conf, in, &eline);
//NCONF_dump_fp(conf, stdout);
NCONF_free(conf);
BIO_free(in);
return 0;
}
int NCONF_load_fp(CONF *conf, FILE *fp,long *eline)
{
BIO *btmp;
int ret;
if(!(btmp = BIO_new_fp(fp, BIO_NOCLOSE)))
{
CONFerr(CONF_F_NCONF_LOAD_FP,ERR_R_BUF_LIB);
return 0;
}
ret = NCONF_load_bio(conf, btmp, eline);
BIO_free(btmp);
return ret;
}
/*
* Private
*/
static CONF *
parse_config(VALUE str, CONF *dst)
{
CONF *conf;
BIO *bio;
long eline = -1;
bio = ossl_obj2bio(str);
conf = dst ? dst : NCONF_new(NULL);
if(!conf){
BIO_free(bio);
ossl_raise(eConfigError, NULL);
}
if(!NCONF_load_bio(conf, bio, &eline)){
BIO_free(bio);
if(!dst) NCONF_free(conf);
if (eline <= 0) ossl_raise(eConfigError, "wrong config format");
else ossl_raise(eConfigError, "error in line %d", eline);
ossl_raise(eConfigError, NULL);
}
BIO_free(bio);
return conf;
}
int MAIN(int argc, char **argv)
{
ENGINE *e = NULL;
int i,badops=0, ret = 1;
BIO *in = NULL,*out = NULL;
int verify=0,noout=0,pubkey=0;
char *infile = NULL,*outfile = NULL,*prog;
char *passargin = NULL, *passin = NULL;
const char *spkac = "SPKAC", *spksect = "default";
char *spkstr = NULL;
char *challenge = NULL, *keyfile = NULL;
CONF *conf = NULL;
NETSCAPE_SPKI *spki = NULL;
EVP_PKEY *pkey = NULL;
#ifndef OPENSSL_NO_ENGINE
char *engine=NULL;
#endif
apps_startup();
if (!bio_err) bio_err = BIO_new_fp(OPENSSL_TYPE__FILE_STDERR, BIO_NOCLOSE);
if (!load_config(bio_err, NULL))
goto end;
prog=argv[0];
argc--;
argv++;
while (argc >= 1)
{
if (TINYCLR_SSL_STRCMP(*argv,"-in") == 0)
{
if (--argc < 1) goto bad;
infile= *(++argv);
}
else if (TINYCLR_SSL_STRCMP(*argv,"-out") == 0)
{
if (--argc < 1) goto bad;
outfile= *(++argv);
}
else if (TINYCLR_SSL_STRCMP(*argv,"-passin") == 0)
{
if (--argc < 1) goto bad;
passargin= *(++argv);
}
else if (TINYCLR_SSL_STRCMP(*argv,"-key") == 0)
{
if (--argc < 1) goto bad;
keyfile= *(++argv);
}
else if (TINYCLR_SSL_STRCMP(*argv,"-challenge") == 0)
{
if (--argc < 1) goto bad;
challenge= *(++argv);
}
else if (TINYCLR_SSL_STRCMP(*argv,"-spkac") == 0)
{
if (--argc < 1) goto bad;
spkac= *(++argv);
}
else if (TINYCLR_SSL_STRCMP(*argv,"-spksect") == 0)
{
if (--argc < 1) goto bad;
spksect= *(++argv);
}
#ifndef OPENSSL_NO_ENGINE
else if (TINYCLR_SSL_STRCMP(*argv,"-engine") == 0)
{
if (--argc < 1) goto bad;
engine= *(++argv);
}
#endif
else if (TINYCLR_SSL_STRCMP(*argv,"-noout") == 0)
noout=1;
else if (TINYCLR_SSL_STRCMP(*argv,"-pubkey") == 0)
pubkey=1;
else if (TINYCLR_SSL_STRCMP(*argv,"-verify") == 0)
verify=1;
else badops = 1;
argc--;
argv++;
}
if (badops)
{
bad:
BIO_printf(bio_err,"%s [options]\n",prog);
BIO_printf(bio_err,"where options are\n");
BIO_printf(bio_err," -in arg input file\n");
BIO_printf(bio_err," -out arg output file\n");
BIO_printf(bio_err," -key arg create SPKAC using private key\n");
BIO_printf(bio_err," -passin arg input file pass phrase source\n");
BIO_printf(bio_err," -challenge arg challenge string\n");
BIO_printf(bio_err," -spkac arg alternative SPKAC name\n");
BIO_printf(bio_err," -noout don't print SPKAC\n");
BIO_printf(bio_err," -pubkey output public key\n");
BIO_printf(bio_err," -verify verify SPKAC signature\n");
#ifndef OPENSSL_NO_ENGINE
BIO_printf(bio_err," -engine e use engine e, possibly a hardware device.\n");
#endif
goto end;
}
ERR_load_crypto_strings();
if(!app_passwd(bio_err, passargin, NULL, &passin, NULL)) {
BIO_printf(bio_err, "Error getting password\n");
goto end;
}
#ifndef OPENSSL_NO_ENGINE
e = setup_engine(bio_err, engine, 0);
#endif
if(keyfile) {
pkey = load_key(bio_err,
TINYCLR_SSL_STRCMP(keyfile, "-") ? keyfile : NULL,
FORMAT_PEM, 1, passin, e, "private key");
if(!pkey) {
goto end;
}
spki = NETSCAPE_SPKI_new();
if(challenge) ASN1_STRING_set(spki->spkac->challenge,
challenge, (int)TINYCLR_SSL_STRLEN(challenge));
NETSCAPE_SPKI_set_pubkey(spki, pkey);
NETSCAPE_SPKI_sign(spki, pkey, EVP_md5());
spkstr = NETSCAPE_SPKI_b64_encode(spki);
if (outfile) out = BIO_new_file(outfile, "w");
else {
out = BIO_new_fp(OPENSSL_TYPE__FILE_STDOUT, BIO_NOCLOSE);
#ifdef OPENSSL_SYS_VMS
{
BIO *tmpbio = BIO_new(BIO_f_linebuffer());
out = BIO_push(tmpbio, out);
}
#endif
}
if(!out) {
BIO_printf(bio_err, "Error opening output file\n");
ERR_print_errors(bio_err);
goto end;
}
BIO_printf(out, "SPKAC=%s\n", spkstr);
OPENSSL_free(spkstr);
ret = 0;
goto end;
}
if (infile) in = BIO_new_file(infile, "r");
else in = BIO_new_fp(OPENSSL_TYPE__FILE_STDIN, BIO_NOCLOSE);
if(!in) {
BIO_printf(bio_err, "Error opening input file\n");
ERR_print_errors(bio_err);
goto end;
}
conf = NCONF_new(NULL);
i = NCONF_load_bio(conf, in, NULL);
if(!i) {
BIO_printf(bio_err, "Error parsing config file\n");
ERR_print_errors(bio_err);
goto end;
}
spkstr = NCONF_get_string(conf, spksect, spkac);
if(!spkstr) {
BIO_printf(bio_err, "Can't find SPKAC called \"%s\"\n", spkac);
ERR_print_errors(bio_err);
goto end;
}
spki = NETSCAPE_SPKI_b64_decode(spkstr, -1);
if(!spki) {
BIO_printf(bio_err, "Error loading SPKAC\n");
ERR_print_errors(bio_err);
goto end;
}
if (outfile) out = BIO_new_file(outfile, "w");
else {
out = BIO_new_fp(OPENSSL_TYPE__FILE_STDOUT, BIO_NOCLOSE);
#ifdef OPENSSL_SYS_VMS
{
BIO *tmpbio = BIO_new(BIO_f_linebuffer());
out = BIO_push(tmpbio, out);
}
#endif
}
if(!out) {
BIO_printf(bio_err, "Error opening output file\n");
ERR_print_errors(bio_err);
goto end;
}
if(!noout) NETSCAPE_SPKI_print(out, spki);
pkey = NETSCAPE_SPKI_get_pubkey(spki);
if(verify) {
i = NETSCAPE_SPKI_verify(spki, pkey);
if (i > 0) BIO_printf(bio_err, "Signature OK\n");
else {
BIO_printf(bio_err, "Signature Failure\n");
ERR_print_errors(bio_err);
goto end;
}
}
if(pubkey) PEM_write_bio_PUBKEY(out, pkey);
ret = 0;
end:
NCONF_free(conf);
NETSCAPE_SPKI_free(spki);
BIO_free(in);
BIO_free_all(out);
EVP_PKEY_free(pkey);
if(passin) OPENSSL_free(passin);
apps_shutdown();
OPENSSL_EXIT(ret);
}
/*
* We need to replace a standard chunk of PKCS7 signature with one mandated
* by Authenticode. Problem is, replacing it just like that and then calling
* PKCS7_final() would make OpenSSL segfault somewhere in PKCS7_dataFinal().
* So, instead, we call PKCS7_dataInit(), then put our Authenticode-specific
* data into BIO it returned, then call PKCS7_dataFinal() - which now somehow
* does not panic - and _then_ we replace it in the signature. This technique
* was used in sbsigntool by Jeremy Kerr, and might have originated in
* osslsigncode.
*/
static void
magic(PKCS7 *pkcs7, const char *digest, size_t digest_len)
{
BIO *bio, *t_bio;
ASN1_TYPE *t;
ASN1_STRING *s;
CONF *cnf;
unsigned char *buf, *tmp;
char *digest_hex, *magic_conf, *str;
int len, nid, ok;
digest_hex = bin2hex(digest, digest_len);
/*
* Construct the SpcIndirectDataContent chunk.
*/
nid = OBJ_create("1.3.6.1.4.1.311.2.1.4", NULL, NULL);
asprintf(&magic_conf, magic_fmt, digest_hex);
if (magic_conf == NULL)
err(1, "asprintf");
bio = BIO_new_mem_buf((void *)magic_conf, -1);
if (bio == NULL) {
ERR_print_errors_fp(stderr);
errx(1, "BIO_new_mem_buf(3) failed");
}
cnf = NCONF_new(NULL);
if (cnf == NULL) {
ERR_print_errors_fp(stderr);
errx(1, "NCONF_new(3) failed");
}
ok = NCONF_load_bio(cnf, bio, NULL);
if (ok == 0) {
ERR_print_errors_fp(stderr);
errx(1, "NCONF_load_bio(3) failed");
}
str = NCONF_get_string(cnf, "default", "asn1");
if (str == NULL) {
ERR_print_errors_fp(stderr);
errx(1, "NCONF_get_string(3) failed");
}
t = ASN1_generate_nconf(str, cnf);
if (t == NULL) {
ERR_print_errors_fp(stderr);
errx(1, "ASN1_generate_nconf(3) failed");
}
/*
* We now have our proprietary piece of ASN.1. Let's do
* the actual signing.
*/
len = i2d_ASN1_TYPE(t, NULL);
tmp = buf = calloc(1, len);
if (tmp == NULL)
err(1, "calloc");
i2d_ASN1_TYPE(t, &tmp);
/*
* We now have contents of 't' stuffed into memory buffer 'buf'.
*/
tmp = NULL;
t = NULL;
t_bio = PKCS7_dataInit(pkcs7, NULL);
if (t_bio == NULL) {
ERR_print_errors_fp(stderr);
errx(1, "PKCS7_dataInit(3) failed");
}
BIO_write(t_bio, buf + 2, len - 2);
ok = PKCS7_dataFinal(pkcs7, t_bio);
if (ok == 0) {
ERR_print_errors_fp(stderr);
errx(1, "PKCS7_dataFinal(3) failed");
}
t = ASN1_TYPE_new();
s = ASN1_STRING_new();
ASN1_STRING_set(s, buf, len);
ASN1_TYPE_set(t, V_ASN1_SEQUENCE, s);
PKCS7_set0_type_other(pkcs7->d.sign->contents, nid, t);
}
int
spkac_main(int argc, char **argv)
{
int i, ret = 1;
BIO *in = NULL, *out = NULL;
char *passin = NULL;
char *spkstr = NULL;
CONF *conf = NULL;
NETSCAPE_SPKI *spki = NULL;
EVP_PKEY *pkey = NULL;
if (single_execution) {
if (pledge("stdio rpath wpath cpath tty", NULL) == -1) {
perror("pledge");
exit(1);
}
}
memset(&spkac_config, 0, sizeof(spkac_config));
spkac_config.spkac = "SPKAC";
spkac_config.spksect = "default";
if (options_parse(argc, argv, spkac_options, NULL, NULL) != 0) {
spkac_usage();
return (1);
}
if (!app_passwd(bio_err, spkac_config.passargin, NULL, &passin, NULL)) {
BIO_printf(bio_err, "Error getting password\n");
goto end;
}
if (spkac_config.keyfile) {
pkey = load_key(bio_err,
strcmp(spkac_config.keyfile, "-") ? spkac_config.keyfile
: NULL, FORMAT_PEM, 1, passin, "private key");
if (!pkey) {
goto end;
}
spki = NETSCAPE_SPKI_new();
if (spkac_config.challenge)
ASN1_STRING_set(spki->spkac->challenge,
spkac_config.challenge,
(int) strlen(spkac_config.challenge));
NETSCAPE_SPKI_set_pubkey(spki, pkey);
NETSCAPE_SPKI_sign(spki, pkey, EVP_md5());
spkstr = NETSCAPE_SPKI_b64_encode(spki);
if (spkstr == NULL) {
BIO_printf(bio_err, "Error encoding SPKAC\n");
ERR_print_errors(bio_err);
goto end;
}
if (spkac_config.outfile)
out = BIO_new_file(spkac_config.outfile, "w");
else
out = BIO_new_fp(stdout, BIO_NOCLOSE);
if (!out) {
BIO_printf(bio_err, "Error opening output file\n");
ERR_print_errors(bio_err);
} else {
BIO_printf(out, "SPKAC=%s\n", spkstr);
ret = 0;
}
free(spkstr);
goto end;
}
if (spkac_config.infile)
in = BIO_new_file(spkac_config.infile, "r");
else
in = BIO_new_fp(stdin, BIO_NOCLOSE);
if (!in) {
BIO_printf(bio_err, "Error opening input file\n");
ERR_print_errors(bio_err);
goto end;
}
conf = NCONF_new(NULL);
i = NCONF_load_bio(conf, in, NULL);
if (!i) {
BIO_printf(bio_err, "Error parsing config file\n");
ERR_print_errors(bio_err);
goto end;
}
spkstr = NCONF_get_string(conf, spkac_config.spksect,
spkac_config.spkac);
if (!spkstr) {
BIO_printf(bio_err, "Can't find SPKAC called \"%s\"\n",
spkac_config.spkac);
ERR_print_errors(bio_err);
goto end;
}
spki = NETSCAPE_SPKI_b64_decode(spkstr, -1);
if (!spki) {
BIO_printf(bio_err, "Error loading SPKAC\n");
ERR_print_errors(bio_err);
goto end;
}
if (spkac_config.outfile)
out = BIO_new_file(spkac_config.outfile, "w");
else {
out = BIO_new_fp(stdout, BIO_NOCLOSE);
}
if (!out) {
BIO_printf(bio_err, "Error opening output file\n");
ERR_print_errors(bio_err);
goto end;
}
if (!spkac_config.noout)
NETSCAPE_SPKI_print(out, spki);
pkey = NETSCAPE_SPKI_get_pubkey(spki);
if (spkac_config.verify) {
i = NETSCAPE_SPKI_verify(spki, pkey);
if (i > 0)
BIO_printf(bio_err, "Signature OK\n");
else {
BIO_printf(bio_err, "Signature Failure\n");
ERR_print_errors(bio_err);
goto end;
}
}
if (spkac_config.pubkey)
PEM_write_bio_PUBKEY(out, pkey);
ret = 0;
end:
NCONF_free(conf);
NETSCAPE_SPKI_free(spki);
BIO_free(in);
BIO_free_all(out);
EVP_PKEY_free(pkey);
free(passin);
return (ret);
}